ATSAMA5D41A-CU View Datasheet(PDF) - Atmel Corporation
Part Name
Description
MFG CO.
'ATSAMA5D41A-CU' PDF : 1808 Pages View PDF
Table 12-7. Customer Fuse Matrix
SFC_DR Bits
15 [511:480]
JTAG_DIS
[511]
SEC_DEBUG_DIS
[510]
14 [479:448]
13 [447:416]
12 [415:384]
11 [383:352]
10 [351:320]
9 [319:288]
8 [287:256]
7 [255:224]
6 [223:192]
5 [191:160]
4 [159:128]
3
[127:96]
2
[95:64]
1
[63:32]
0
[31:0]
Use
DNU
[509:483]
MD
[482]
USER_DATA[479:0]
DNU
[481]
S
[480]
Table 12-8 provides details on the four special function fuse bits JTAG_DIS, SEC_DEBUG_DIS, MD, and S.
Table 12-8. Special Function Fuse Bits
JTAG_DIS
[511]
JTAG Disable
SEC_DEBUG_DIS
[510]
Secure Debug
Disable
MD
[482]
Monitor Disable
S
[480]
Secure Boot Mode Description
0
0
–
–
Full JTAG debug allowed in Secure and Normal modes
0
1
–
–
JTAG debug only allowed in Normal mode (non-secure)
1
X
–
–
JTAG debug disabled
–
–
0
–
(Default case) SAM-BA Monitor is launched in the case where
no bootable program is found in an external memory.
No SAM-BA Monitor is launched in the case where no bootable
–
–
1
–
program is found in an external memory. No communication link
is set up, JTAG remains disabled and the ROM Code is in an
infinite loop.
–
–
–
0
Standard boot sequence
–
–
–
1
Secure boot sequence
SAMA5D4 Series [DATASHEET]
85
Atmel-11238C-ATARM-SAMA5D4-Datasheet_12-Jul-16
Share Link: 
